I concur! Do NOT use that splitter or the pigtails (wires) coming off of it singly either!
They are designed to carry 500mA or less! A miner will pull up to 600mA in SCRYPT mode, usually less but it can peak that high. Do the math. It won't work out well for you if you don't head our warnings!
Try these
http://www.amazon.com/dp/B0058RLD9C/ref=pe_385040_30332190_TE_M3T1_ST1_dp_1 with the appropriate 'paired' wire i.e. - 14ga Stranded Copper THHN - minimum just in case you ever do decide to run SHA. RED And BLACK are the idea colors. RED = + / BLACK = - Clearly marked on the adaptor!
Practically anyone can make this work! And Yes, they will work perfectly!
16 gauge stranded copper will work though if you are dead sure you will never run in SHA mode.
Good luck!
Wolfey2014